Window-scaffold.



\l. PERSOONS.

WINDOW SCAFFOLD.

APPLICATION FILED APR. 8, I914.

Patented July 6, 1915.

2 SHEETS-SHEET] V Pensaon;

V.PERSOONS. wmnow SCAFFOLD.

APPLICATION FILED APR. 8, 1914- I Patented J uly 6, 1915.

3 3..r O 0 ii Q42 3 '7 I: 425 I VICTOR PERL'SOONS, OF ASBURY PARK, JERSEY.

wmnow-scArroLn.

Specification ofLetter's Patent.

Patented July 6, "1915'.

Application filed April 8, 1914, i Serlal No. 830,460. e

To all whom it may concern 3 Bev it known that I, VICTOR Pnnsoons, citizen of the United States, residing at Asbury Park, in the county of Monmouth 'and State of New Jersey, have invented 'cerobject of'my invention beingv the PIOViSlOIl of a supporting scaffold in the form of a chair which may be secured to and supported. by the window casing and sill in such a manner that any one sitting in the seat or chair may readily wash the outside of a window to which it is applied.

A further object of my invention is to so construct the seat that it may be firmly held against either inward or outward movement with respect to the window casing and also against any tilting movement, thereby rendering it as safe as possible.

A still further object of my invention is to so construct the securing mechanism for the seat that it may be adjusted to windows of varying sizes and windows having sashes and sills of various proportions and types of construction.

With these and other objects in view, my invention will be more fully described, illus-. trated in the accompanying drawings, and then specifically pointed out in the claims which are attached to and form a part of this application.

In the drawings :-Figure 1 is a perspective view of my improved window washing seat in use; Fig; 2 is a top plan view of the seat in use, the window casingbeing shown in transverse section; Fig. 3 is a bottom plan view of the seat, showing certain details in construction; Fig. .4 is a side elevation of the window seat in use, the window sill being shown in vertical section to per-- mit a full disclosure 'of the seat construc tion; Fig. 5 is an unassembled perspective view of the mechanism employed in locking the seat against outward movement from the window casing to'which it is applied; Fig. 6 is an unassembled perspective view of one of the supporting feet and its ad- .justable attaching plate; Fig. 7 is a similar view of another supporting foot and its attaching plate.

Corresponding and like parts are referred tions extend to" in the following description and indicated 1n all the views of the. drawingsby the same reference characters.- v My improved seat for window washers includes a seat frame 10 carrying a seat bottom 11, r the frame being preferably spaced fastening devices 13 such as bolts and nuts. The horizontal flange of this relnforcmg element, at its ends, terminates a slight distance short of the front edge of the seat, while the vertical or depending flange has its end portions bent inwardly at right angles as shown at 14 to form securing ears,as will be later explained.

Dlagonally disposed brackets 15 are secured atone end to the upper face of the seat'at either side and the transversely extending back formingbar 16 is secured to the upper ends of these brackets. The bolts or other fastening devices 17 which secure the brackets to the seats also pass, through tionally secure this strip to the seat. As best shown m Figs. 1 and 4, the depending flange of the angle iron strip 12, along the sides of the seat, is provided with horizon-' tally extending slots 18, the purpose of which will be later fully explained,

In order to support and secure the above described seat exteriorly of a window by engagement with the window casing, I provide primarily an adjustable fastening device, in-- dicated as a whole by :the numeral 19, this fastening device being best shown in detail in Fig. 5 of the drawings. The device 19 primarily includes a guide member 20 and sliding arms 21 and 22 carried and supthe angle iron strip 12' and serve to addiported by the guide 20. This guide 20 is in the form of a strip of metal, U-shapedin cross section and secured along the front portion of the chair seat, by bolts 23 passed through its intermediate portion and through the ears 14, previously described,: the guide bein so disposed that its side por- Eorwardly of the seat. This guide member is further-provided with ears 24 which bear against the bottom face of the seat when the guide member is so fastened to receive additional securing bolts or other fastening devices 25, the fastening devices 23 and 25 co-acting to not only hold the guide member against ,movement toward the forward or rear portion of the seat but also against any turning about its longitudinal axis.

The guide member 20 has its intermediate portion thickened exteriorly as shown at 26 and adjacent this thickened portion the side portions or flanges of such member are connected by an integrally formed yoke 27 forming a guide loop, said flanges being similarly connected at their ends to form guide loops 28 and 29. Reference to Fig. 3

the guide loops 27 and 28 are equal in size, while the guide loop 29 is smaller, the reason for this proportioning being later apparent.

The supporting arms 21 and 22 each consist in a bar of metal provided throughout the greater portion of its length witha lon gitudinally disposed slot 30, these bars being proportioned to seat against the intermediate portion of the guide member and between its flanges, lying one over the other as best shown in Fig. 3with their outer ends extending beyond the guide loops 28 and 29,

respectively. The inner ends of these sup-' porting arms overlap under all circumstances and a wing bolt 31 has its shank passed through the alined slots of these arms and threaded into a tapped bore formed in the thickened portion 26 of the guide mem-- ber. By mounting the supporting arms in this manner, they may be extended beyond the sides of the seat to any desired extent, within predetermined limits, and when so extended, firmly clamped by tightening the wing bolt.

The intermediate portion of the guide member '20, adjacentthe loop 28, is preferably thickened interiorly to provide a seat for the supporting arm 21 in a plane with the outer face of the supporting arm 22 over which the innerend of the arm 21 extends. Because of this, both arms will be firmly clamped in place by tightening of the wing bolt. Each arm terminates in a substantially lL-shaped window sash engaging head 32, one side of which extends parallel to the forward portion of the seat and theother arm of which is directed toward therear portion of the seat, these heads preferably' being considerably wider than the .width of the supporting arm in orderv to 've enlarged bearing surfaces. The inner aces of these heads are preferably lined with a layer of felt or other cushioning material, indicated at 33 in order that they may not mar the finish or paint of the window casing when the seat is in'use. These supporting arms, as will-be later explained, serve to prevent outward movement of the seat from the window casing and, in conaaeaaea junction with supports to be later explained, to prevent tilting of the seat.

Seating against the inner face of the depending flange of the reinforcing element 12, at each side of the seat, is a securing plate 34 provided adjacent each end with a guide stud 35 and intermediate its length with a threaded stud 36, these studs all being in alinement with each other and all ex- 4 with the outer faces of such body members,

while the threaded studs 36 project beyond such faces to receive wing nuts 40 by means of which the supporting feet 37 may be clamped in adjusted position "longitudinally of the slots 18.

.Locki'ng plates 41, corresponding to the locking plates 34, bear against the depending flange at either side of the seat, being provided at each end with threaded studs 42 projecting through the slots of such flange and through laterally directed ears guides tt'bearing against the outer face of the flange to receive wing clamping nuts 45. These guides are in efl'ect in the form of sleeves to slidably inclose the shanks offsupporting feet 46,-the lower terminals ofwhich are laterally bent as at 4:7 to give additional bearing surface for engagement with a window sill.] The lower outer portions of the sleeves forming the body portions of these guides d4: are thickened exteriorly and provided with tapped bores to receive the shanks of wing nuts 48, the terminals of which are conically formed to seat in one or another of a plurality of conical sockets 49 formed in the shanks of the supporting feet 46..

From the foregoing description, taken in connection with the drawings, the operation of my improved seat for window washers will be readily understood and but slight description is deemed necessary. In positioning the seat, the wing bolt 31 is loosened and the supporting arms 21 and 22 projected, preferably equally, from the sides of the Seat to such an extent as to bring their heads into engagement with the inner and side faces of the sides of the. window casing when the seat is positioned as shown in,the

drawings, after which the wing bolt 31 is ings and by proper manipulation of the wing nut 40, the supporting or clamping feet 37 are moved to engage snugly against the outer edge of'the inner window sillor the sill of the sash proper and clamped in such adjusted position.- The supporting feet46 are then adjusted to bear against the outer sill or window ledge in such a manner as to support the seat in horizontal position, the supporting guides or brackets for such feet being preferably adjusted rearwardly of the seat in order that the feet may be located as far as possible toward the rear'of the seat in adjusted position. a

. It will be clearly apparent that the supporting arms 21 and 22 prevent outward movement of theseatrand, in conjunction with the supporting feet 37 and 46, prevent any swinging or tilting movement of the seat. At the same time, the supporting feet '37 and 46, particularly the latter, serve .to in effect support the rear portion of the ous changes, within the scope of the appended claims, may be made at any time,

without in the slightest degree departing from the spirit of my invention.

Having thus described the invention, what is claimed as new is:

1. A device of the character described including a seat, a reinforcing element extending around the back and sides of the seat and having a downwardly depending flange, a guide member secured across the front of the seat and to the ends of the reinforcing 7 member, extensible arms carried by the guide member and movable into engagement with a window frame, and supporting members adjustably secured to the downwardly depending flanges of those portions of the reinforcing member bracing the sides of the seat.

2; In a device of the character described,

a seat, extensible arms carried by the forward portion of the seat and adapted to move into engagement with a window frame,

a reinforcing element extending along the' sides of the-seat and having a depending flange, and a plurality of sill engaging devices carriedby the flange at eachside of the seat, all of said devices being adjustable longitudinally oflthe flange and the outermost devices being vertically extensible.

In testimony. whereof I aflix my signature in presence oftwo witnesses. r

VICTOR PERSOONS. [1,. s.] Witnesses:

ALBERT COOKE,

JAMES C. VAN HOUTEN. 

